Question

Electronegativity of group 13 elements follow the order:

Answer 1

The order of electro-negativity of group 13 elements is B > TI > In > Ga > Al.

Explanation:

• In the periodic table, group 13 is called boron family, which is composed of elements such as Boron, Aluminium, gallium, Indium, Thallium, and nihonium.
• The atom's ability to attract a bonding pair of electron is called electronegativity.
• The electronegativity value of group 13 elements are:

1. Boron - 2.0
2. Aluminum - 1.5
3. Gallium - 1.6
4. Indium - 1.7
5. Thallium - 1.8

• From the electro-negativity values of group 13 elements it can be inferred that it follows the order B > TI > In > Ga > Al.

Learn more about electronegativity

Explain the following:

(a) Electronegativity of elements increase on moving from left to right in the periodic table.

(b) Ionisation enthalpy decrease in a group from top to bottom.

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